With our M715 sucking down fuel at a rate of 4 mpg, we knew we had to do some-thing. We were running a Holley 670cfm Truck Avenger on our Chevy V-8, and thanks to an AEM wide-band O2 sensor, we knew ...

When people talk about the air/fuel ratio of their engine, do you get confused? Do they really know what they're talking about, or did they just hear someone mention it in another conversation?

A lambda probe (or oxygen sensor) can be found on the exhaust system of most cars running on unleaded fuel. Having reached its normal operating temperature (of about 600 degrees Celsius!) the lambda ...

Tuning a carburetor to supply an engine with the correct jetting-air/fuel mixture has always been a job that almost impossible for most hot rod owners and tuners. In the past, most performance engine ...

Don't be afraid to adjust the carb with more than just your idle-air screw! The opening line says it all, right? Install a new carb or one that you just found at a local swap meet and don't be afraid ...